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i just received mail from the store, they said that the "usual" law is that 7 dead pixels are allowed at max, 2-3 in 1cm2. but i also have the chance to see it for myself before i buy it. so i guess it's kinda good news.

there is a difference between dead pixel and dead subpixel. (1 pixel stands for 3 subpixel: red, green, blue) if there is a dead subpixel, then a pixel cant make all the colors, but a dead pixel is a black point.
and if it comes to test them, take one of these programs on a pendrive and run it on the laptop, these are specific pixel tester applications:

wow thanks for this! the only problem i think will be that the laptop won't have an OS installed, just free dos. :S i thought about a linux live cd at first but i dunno... maybe i'll test the comp as soon as i get an os on it....

ooookay, so i'm back with my brand new dell inspiron n5110. im happy to announce that it doesn't have any dead pixels, i checked using the apps you recommended, thx again. finally i got the i5 version instead of the i3, it was just a bit more expensive, but i think it was worth it. its fast as hell, though i had a rough night trying to install all the drivers for the various parts of the computer. but now it's all right, i'm checking the gaming performance when i got home. btw, the looks nice, the display could be better, but can't complain, the build quality seems decent enough, even though the keyboard is not too massive. but hey, i switched from a macbook pro, so my expectations might be a bit too high concerning build quality. so all in all, great machine for the price so far.

it wasnt an easy decision, but i felt in love with its design, and the price/performance ratio of the machine made it clear for me that it is a best buy dell 5110 seemed too shiny to me but its also a very good one. i also like dell xps but its way more expensive cause its a very well built notebook. if all things go well i will get it on tuesday or wednesday

hey tob1n,
yesterday i got the laptop its very cool(not when running games:P) and has some nice feature. i like its keyboard and display, and certainly the design! shipping took almost 2 weeks but was said 2day so i deserved the 500gb hard disk instead of 320gb and the blueray drive for free the only thing i dont like so much is the shining surface,it collects all the fingerprints. to sum my limited experiences after one day, i can say that lenovo y560 seems to be a very good machine!

hey man, thanks for the update! i'm glad you're happy with your new laptop! also, i didn't know companies have this policy with delays...you came out of it good right? enjoy your machine as much as I'm enjoying mine